One month post-admission, the patient exhibited gradual improvement in limb, trunk, and abdominal pain, allowing for intermittent disconnection from the ventilator. Electromyography (EMG) of the limbs was promptly conducted, revealing multifocal peripheral nerve damage with initial axonal involvement based on electrodiagnostic assessment. No abnormalities were observed on repetitive nerve stimulation (Table 2). Head magnetic resonance imaging (MRI) combined with magnetic resonance angiography (MRA) demonstrated no evident abnormalities (Figure 1). To address this condition, aggressive plasma exchange therapy was initiated, consisting of one session every other day for a total of five exchanges. Subsequently, on the day following the fifth plasma exchange, the patient exhibited finger movement.
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